/Engine/Source/Runtime/CoreUObject/Public/Serialization/ObjectWriter.h
Most of the time, FLazyObjectPtrs are serialized as UObject*, but some archives need to override this.
This instance.
virtual [FArchive](API\Runtime\Core\Serialization\FArchive) & operator<< ( [FLazyObjectPtr](API\Runtime\CoreUObject\UObject\FLazyObjectPtr) & Value )